light-sensitive

From light (noun) +‎ sensitive.

light-sensitive (comparative more light-sensitive, superlative most light-sensitive)

1. affected by, or sensitive to light.
   • 1963 August, “The semi-automatic Tees Yard of the North Eastern Region”, in Modern Railways, page 124:

     All lights are automatically extinguished at daylight by light-sensitive relay.

2. (of substances and surfaces) changing chemically or physically when exposed to light.
3. (biology) (of cells, tissue or organs) able to detect the presence (or intensity) of light.

• photosensitive